The Ultra RT4 Recessed LED Downlight Kit from Sylvania / Osram is a 9W LED lamp integrated into a 4" recessed housing, targeted as a replacement for 50W incandescent bulbs. Situated in an adjustable gimbal, it can tilt up to 35° and rotate 360° for enhanced control over its beam direction. The bulb accepts 120V input and outputs approximately 600 lumens, featuring a warm color temperature of 2700K.

With a beam angle of 80°, this LED lamp provides flooding light that is well suited for general office use and the hospitality industry. When used with an optional dimmer, the bulb can dim down to 10% to allow you to adapt its light intensity. The Ultra RT4 features a CRI of 90 and is rated to last for approximately 50,000 hours. Included with the product is an E26 medium base socket adapter for simplified installation.

4" White Recessed Housing    Color Temperature: 2700K    Output of 600 Lumens    Color Rendering Index: 90    Beam Angle: 80°    Adjustable Gimbal with 35° Tilt    Dimmable Down to 10%    Rated Life: 50,000 Hours    E26 Medium Base Socket Adapter Included

Related Questions and Answers

Q: 1. Are there LED alternatives to this bulb? I realize it won't have the same output wattage. I can work around that.

A: The Osram GCA (250W/120V) Lamp only comes as a quartz bulb. There are no LED versions.

Q: 2. I have a Kodak 860H slide projector. The bulb blew out the other day. I want to replace it. Is the Sylvania/Osram ELH the correct bulb? It looks right, but the specs refer to an overhead projector.

A: We have a 750H Kodak projector, different from yours. Sorry we can't be more helpful.

Q: 3. I have ViP Pro-light (EU model). Will GCA 120V 250W work with my light in Europe?

A: The Sylvania / Osram GLF (235W/230V) Lamp B&H # SYGLF is the correct lamp for the Lowel ViP Pro Light when using it in Europe. https://bhpho.to/2kYSsQ9

Q: 4. what is the MOL of this lamp?

A: The maximum overall length of this lamp is 6.94 .

Q: 5. Hello! Will this bulb works in a durst cls301 head?

A: We cannot confirm 100% that the Sylvania / Osram ELH (300W/120V) Lamp BH #SYELH would be compatible with a Durst CLS 301 Color Color-Mixing Enlarger Head. It should be a simple plug and play arrangement.

Q: 6. Does this lamp have a 5.5 inch width?

A: From end to end it is 6.6 (167mm) long.

Q: 7. Is this usable as a modelling lamp for Profoto Prohead Plus heads (w/ 100mm cover)?

A: Yes this modeling lamp can be used with the Profoto Pro Head Plus Flash Head.

Q: 8. Do you have Sylvania bulb 300w 24v?

A: For that wattage and voltage, we have the Eiko JC Lamp (300W/24V) B&H # EIJC24V300W.

Q: 9. Will this work with a Axial Ellipsoidal 360Q Series Fixture?

A: Yes, the Osram EHG (750W/120V) Lamp is compatible with Altman Axial Ellipsoidal 360Q series fixtures.

Q: 10. Do these bulbs expire if unopned

A: Not they do not expire.